Software Engineer and Technical Leader with 12+ years driving high-impact solutions and leading cross-functional teams. Proven track record of scaling engineering teams, delivering complex projects on tight deadlines, and mentoring engineers. Expert in Java ecosystem, microservices architecture and agile methodologies with strong focus on business-driven technical decisions.
Core expertise: Team Leadership - Technical Leadership - Domain Driven Design - Backend Development - Microservices Architecture - System Design - Agile Methodologies
Work Experience
Technical Lead | Playtika
February 2025 - Present | Warsaw, Poland
- Designed, implemented, and delivered cross-cutting game feature within 3-month timeline
- Defined comprehensive development roadmap and led daily team operations
- Coached business partners on agile development methodologies and best practices
- Implemented unified Role-Based Access Control (RBAC) authorization system using OpenPolicyAgent
Technologies: Java 21, Spring Boot, Maven, Reactive Programming, Microservices, Domain Driven Design
Staff Software Engineer | Punks.com
May 2022 - February 2025 | Warsaw, Poland
- Designed and implemented multi-blockchain wallet management solution for cryptocurrency exchange platform
- Bootstrapped agile team setup from ground up, establishing technical practices and development workflows
- Defined strategic development roadmap and led team operations on daily basis
- Architected scalable microservices infrastructure for high-volume cryptocurrency transactions
Technologies: Java 21, Gradle, Spring Boot, Apache Kafka, Kubernetes, Microservices, Bitcoin, Ethereum, UTXO, Asset Management
Chief Software Engineer | GFT
April 2021 - March 2022 | Warsaw, Poland
- Served as technical lead and software engineering consultant for virtual bank project at leading global investment bank
- Participated in mentors committee, providing guidance and support to junior engineering colleagues
- Led delivery processes within client teams, ensuring project milestones and quality standards
- Delivered internal training programs on client account technologies and methodologies
Technologies: Java 11, Kotlin, Spring Boot, Gradle, Maven, Reactive Programming, Apache Kafka, Kubernetes, Domain Driven Design
Senior Software Engineer | Paramount
July 2018 - March 2021 | Warsaw, Poland
- Drove end-to-end feature design and implementation for large-scale media platform
- Introduced new development tools through proof-of-concept projects, accelerating product development cycles
- Collaborated with senior engineers on architecture design and code kata sessions
- Designed Domain Specific Language (DSL) using Groovy for content validation processes
- Performance Achievement: Reduced content health report generation time from 20 hours to 45 minutes through application profiling and architecture optimization
- Optimized services memory footprint by implementing Redis-based off-heap collection storage
- Implemented unified authorization gateway service across multiple microservices
Technologies: Java 11, Gradle, Groovy, Spock, Spring Boot, Spring WebFlux, OAuth2, Kubernetes, AWS ECS/S3/Batch, Docker, Jenkins
Software Engineer | Robert BOSCH
May 2017 - June 2018 | Warsaw, Poland
- Contributed to geographically distributed development team across multiple time zones
- Drove system architecture decisions aligned with product roadmap requirements
- Designed, implemented, and tested product stories using agile methodologies
- Mentored team members on technical best practices and development standards
- Introduced Enterprise Integration Patterns with Apache Camel, reducing ERP integration effort
- Process Improvement: Automated environment provisioning using Ansible and Jenkins, reducing new tenant onboarding from weeks to one day
Technologies: Java 8, Maven, Spring Boot, Spring Cloud, Apache Kafka, Apache Camel, Jenkins, Ansible, Docker, SOAP, REST
Java Developer | GFT
June 2016 - April 2017 | Warsaw, Poland
- Implemented trading solutions and platforms for financial institutions and investment firms
- Collaborated directly with traders to understand requirements and translate into technical specifications
- Simplified broker trades reporting by implementing Excel-based templates using Apache JXLS
- Developed high-performance trading applications with strict latency requirements
Technologies: Java 8, JUnit, Gradle, Spring Boot, PostgreSQL, Spring MVC, Akka, MongoDB, Jenkins, Docker, ION Trading Platform
Integration Engineer | Ericsson
December 2015 - May 2016 | Warsaw, Poland
- Conducted user workshops and requirements gathering sessions in workforce management domain
- Prepared high-level solution designs and technical architecture documentation
- Implemented feasibility studies and proof-of-concepts for complex client requirements
- Delivered comprehensive system analysis and requirements traceability documentation
Technologies: Enterprise Service Bus (ESB), SOAP, UML, Optimization Solver, Sparxx Enterprise Architect
Software Engineer | Samsung R&D Institute
April 2012 - November 2015 | Warsaw, Poland
- Developed static analysis tools for internal software quality assurance processes
- Built and maintained continuous integration systems supporting multiple development teams
- Conducted source code quality audits analyzing architecture, metrics, and defect patterns
- Managed technology transfer processes between R&D and product teams
- Developed public APIs for Android streaming media applications
- Created Media SDK reference applications and documentation for Android platform
- Developed web-widget library for smart TV applications and embedded systems
Technologies: Java, JUnit, Maven, Jenkins, Git, Python, Tableau, Klocwork, Coverity, SonarQube, Android SDK
Education
Master of Arts, Management | Kozminski University
2013 - 2014 | Warsaw, Poland
- Specialization: Management in Virtual Workplace
- Program not completed
Bachelor of Science, Computer Science | Polish-Japanese Academy of Information Technology
2008 - 2012 | Warsaw, Poland
- Specialization: Systems and Network Programming
- Graduated with Bachelor's degree
Awards
Best Project - Win the LOTTO | Hack Yeah Hackathon
November 2018
- Team award for design and proof-of-concept implementation of lottery system
- Recognized for innovative approach and technical excellence in hackathon competition
New Joiner Success 2016 | GFT
December 2016
- Award for most recognized new employee of the year
- Community-nominated recognition for outstanding contribution and performance
Certificates
Kotlin for Java Developers | Coursera
May 2021
- Certificate ID: KA3ANHE3XE37
- Comprehensive training in Kotlin programming language for Java developers
Programming with Google Go | Coursera
November 2020
- Certificate ID: ZC5NTKQWYRQQ
- Professional certification in Go programming language fundamentals
Oracle Certified Associate, Java SE 8 Programmer | Oracle
April 2017
- Certificate ID: 251906851OCAJSE8
- Industry-standard Java programming certification